保留的A类(/8)IPv4网段分配给谁了?

  A类的地址,子网掩码是255.0.0.0或者/8,是公网的地址,但是有一些A类的地址再IP地址分配之初已经分配给了一些组织或者一些公司(大部分是互联网的早期推动者),那么这些IP地址都分配给谁了呢?

  值得一提的是,有一些组织例如斯坦福大学( Stanford University)为了让IPv4地址枯竭时间延后一点,甚至将自己原有的保留地址36.0.0.0/8归还到公共地址池里面去。

IPv4

具体的内容可以参见一下表格,转自http://en.wikipedia.org/wiki/List_of_assigned_/8_IPv4_address_blocks

 

Block Organization IANADate RIRDate Notes
0.0.0.0/8 IANA – Local Identification 1981-09 Originally IANA – Reserved 1981-09. 0.0.0.0/8 reserved for self-identification (RFC 5735).
1.0.0.0/8 APNIC 2010-01 Formerly IANA – Reserved 1981-09.
2.0.0.0/8 RIPE NCC 2009-10 Formerly IANA – Reserved 1981-09.
3.0.0.0/8 General Electric Company 1994-05 1988-02-23
4.0.0.0/8 Level 3 Communications, Inc. 1992-12 1992-12-01 Originally Bolt Beranek and Newman Inc. (then GTE, then Genuity) 1992-12. Updated to Level 3 Communications, Inc. in 2007-04.
5.0.0.0/8 RIPE NCC Formerly IANA – Reserved 1995-07.
6.0.0.0/8 Army Information Systems Center 1994-02 1994-02-01 Headquarters, USAISC.
7.0.0.0/8 Administered byARIN 1995-04 1997-11-24 Formerly IANA – Reserved 1995-04. Entirely assigned to DoD Network Information Center (DNIC) 1997-11-24. Updated to Administered by ARIN not before 2007.
8.0.0.0/8 Level 3 Communications, Inc. 1992-12 1992-12-01 Originally Bolt Beranek and Newman Inc. (then GTE, then Genuity) 1992-12. Updated to Level 3 Communications, Inc. in 2007-04.
9.0.0.0/8 IBM 1992-08 1988-12-16
10.0.0.0/8 IANA – Private Use 1995-06 Reserved for Private-Use Networks (RFC 1918). Formerly ARPANET.[1]
11.0.0.0/8 DoD Intel Information Systems 1993-05 1984-01-19
12.0.0.0/8 AT&T Services 1995-06 1983-08-23 Originally AT&T Bell Laboratories, retained by AT&T when Bell Labs was spun off to Lucent Technologies in 1996.
13.0.0.0/8 Xerox Corporation 1991-09 1986-04-25 Xerox Palo Alto Research Center (PARC).
14.0.0.0/8 APNIC 2010-04 Formerly IANA – Public Data Network 1991-06-01, then IANA – Reserved 2008-01-22. Returned to IANA in 2008. One of the Class A networks (14.0.0.0/8) was used to map between Internet Addresses and the Public Data Network Addresses (X.121). This network was reclaimed by IANA in 2007 and was subsequently re-allocated in 2010. See RFC 877 and RFC 1356 for historical information.[2]
15.0.0.0/8 Hewlett-Packard Company 1994-07 1994-07-01
16.0.0.0/8 Digital Equipment Corporation 1994-11 1989-05-18 Digital Equipment Corporation, then Compaq, then Hewlett-Packard.
17.0.0.0/8 Apple Inc. 1992-07 1990-04-16
18.0.0.0/8 MIT 1994-01 1994-01-01
19.0.0.0/8 Ford Motor Company 1995-05 1988-06-15
20.0.0.0/8 Computer Sciences Corporation 1994-10 1989-09-04
21.0.0.0/8 DDN-RVN 1991-07 1991-07-01 DoD Network Information Center (DNIC).
22.0.0.0/8 Defense Information Systems Agency 1993-05 1989-06-26 DoD Network Information Center (DNIC).
23.0.0.0/8 ARIN 2010-11 Formerly IANA – Reserved 1995-07.
24.0.0.0/8 ARIN 2001-05 2001-05-01 Formerly IANA – Cable Block 1995-07, then ARIN – Cable Block 2001-05.[3] Updated to ARIN not before 2007.
25.0.0.0/8 UK Ministry of Defence 1995-01 1985-01-28 Originally Royal Signals and Radar Establishment. Updated to UK Ministry of Defence in 2006-01.
26.0.0.0/8 Defense Information Systems Agency 1995-05 1995-05-01 DoD Network Information Center (DNIC).
27.0.0.0/8 APNIC 2010-01 Formerly IANA – Reserved 1995-04.
28.0.0.0/8 DSI-North 1992-07 DoD Network Information Center (DNIC).
29.0.0.0/8 Defense Information Systems Agency 1991-07 1991-07-01 DoD Network Information Center (DNIC).
30.0.0.0/8 Defense Information Systems Agency 1991-07 1991-07-01 DoD Network Information Center (DNIC).
31.0.0.0/8 RIPE NCC 2010-05 2010-05-18 Formerly IANA – Reserved 1991-04.
32.0.0.0/8 AT&T Global Network Services 1994-06 1990-05-30 Originally Norsk Informasjonsteknology. IBM acquired Norsk Informasjonsteknologi (Norway) in 1995. Updated to AT&T Global Network Services in 2007-08.
33.0.0.0/8 DLA Systems Automation Center 1991-01 1991-01-01 DoD Network Information Center (DNIC).
34.0.0.0/8 Halliburton Company 1993-03 1991-03-11
35.0.0.0/8 MERIT Computer Network 1994-04 1994-04-01
36.0.0.0/8 APNIC 2010-10 Formerly Stanford University 1993-04, then IANA – Reserved 2000-07.
37.0.0.0/8 RIPE NCC 2010-11 Formerly IANA – Reserved 1995-04.
38.0.0.0/8 PSINet, Inc. 1994-09 1991-04-16 PSINet, then Cogent Communications.
39.0.0.0/8 APNIC 2011-01 Formerly IANA – Reserved 1995-04.
40.0.0.0/8 Eli Lilly & Company 1994-06 1991-04-23
41.0.0.0/8 AfriNIC 2005-04 Formerly IANA – Reserved 1995-05.
42.0.0.0/8 APNIC 2010-10 Formerly IANA – Reserved 1995-07.
43.0.0.0/8 APNIC 1991-01 1989-02-21 Originally Japan Inet 1991-01 (IANA Date) or 1989-02-21 (RIR Date). Administered by APNIC not before 2007.
44.0.0.0/8 Amateur Radio Digital Communications 1992-07 1992-07-01
45.0.0.0/8 ARIN 1995-01 1991-09-09 Formerly Interop Show Network 1995-01 or 1991-09-09 (RIR Date). Returned to ARIN in 2010-10 except a /15 block. In 2011 it will become available for distribution (or possibly be returned to the IANA, depending on the global policy in effect at that time).[4]
46.0.0.0/8 RIPE NCC 2009-09 Formerly Bolt Beranek and Newman Inc. 1992-12. Returned to IANA in 2007-04.[5] Updated to IANA – Reserved in 2007-04.
47.0.0.0/8 Bell-Northern Research 1991-01 1989-01-06 Bell-Northern Research, formerly absorbed into Nortel, portions of which are now owned by Bell AliantCablevisionMicrosoft, and Vodafone.
48.0.0.0/8 Prudential Securities Inc. 1995-05 1990-12-07 The Prudential Insurance Company of America.
49.0.0.0/8 APNIC 2010-08 Formerly Joint Technical Command (Returned to IANA Mar 98) 1994-05. Updated to IANA – Reserved in 2007-05.
50.0.0.0/8 ARIN 2010-02 Formerly Joint Technical Command (Returned to IANA Mar 98) 1994-05. Updated to IANA – Reserved in 2007-05.
51.0.0.0/8 UK Government Department for Work and Pensions 1994-08 1991-09-16
52.0.0.0/8 E.I. duPont de Nemours and Co., Inc. 1991-12 1991-12-19
53.0.0.0/8 Cap Debis CCS 1993-10 1992-03-17 Cap Debis CCS (Daimler AG).
54.0.0.0/8 Merck and Co., Inc. 1992-03 1992-03-17 Merck has entered into a private sale with Amazon.com for some of their IP address space.[6] They unnumbered 48 /16s as of 01/2012, an additional 16 /16s as of 05/2013, and an additional 16 /16s as of 11/2013 leaving them with about 70% of their original /8.
55.0.0.0/8 DoD Network Information Center 1995-04 1996-10-26 Headquarters, USAISC. Formerly Boeing Computer Services 1995-04. Updated to DoD Network Information Center in 2007-02.
56.0.0.0/8 US Postal Service 1994-06 1992-11-02
57.0.0.0/8 SITA 1995-05 1993-06-21
60.0.0.0/8 APNIC 2010-01 Formerly IANA – Reserved 1981-09.
61.0.0.0/8 APNIC 2010-01 Formerly IANA – Reserved 1981-09.
88.0.0.0/8 APNIC 2010-01 Formerly IANA – Reserved 1981-09.
111.0.0.0/8 APNIC 2010-01 Formerly IANA – Reserved 1981-09.
114.0.0.0/8 APNIC 2010-01 Formerly IANA – Reserved 1981-09.
107.0.0.0/8 ARIN 2010-02 2010-02-11
120.0.0.0/8 APNIC 2010-01 Formerly IANA – Reserved 1981-09.
127.0.0.0/8 IANA – Loopback 1981-09 127.0.0.0/8 is reserved for Loopback (RFC 5735).
128.0.0.0/8 RIPE NCC Various Registries (Maintained by RIPE NCC). 128.0.0.0 is the start address of formerly “Class B“.
169.0.0.0/8 ARIN 1993-05 1993-05-01 Various Registries (Maintained by ARIN). 169.254.0.0/16 (169.254.0.0–169.254.255.255) reserved for link-local addressing (RFC 5735).
172.0.0.0/8 ARIN 1993-05 1993-05-01 Various Registries (Maintained by ARIN). 172.16.0.0/12 (172.16.0.0–172.31.255.255) reserved for private networks (RFC 1918).
183.0.0.0/8 APNIC 2010-01 Formerly IANA – Reserved 1981-09.
192.0.0.0/8 ARIN 1993-05 1993-05-01 Various Registries (Maintained by ARIN). 192.0.2.0/24 reserved for TEST-NET-1 (RFC 5737). 192.88.99.0/24 reserved for 6to4 Relay Anycast (RFC 3068). 192.168.0.0/16 (192.168.0.0–192.168.255.255) reserved for private networks (RFC 1918). 192.0.0.0/24 reserved for IANA IPv4 Special Purpose Address Registry (RFC 5736). 192.0.0.0 is the start address of formerly “Class C“.
198.0.0.0/8 ARIN 1993-05 Various Registries (Maintained by ARIN). 198.18.0.0/15 reserved for Network Interconnect Device Benchmark Testing (RFC 5735). 198.51.100.0/24 reserved for TEST-NET-2 (RFC 5737).
202.0.0.0/8 APNIC 2009-10 202.123.0.0/19 transferred to AfriNIC
203.0.0.0/8 APNIC 1993-05 203.0.113.0/24 reserved for TEST-NET-3 (RFC 5737).
214.0.0.0/8 US-DOD 1998-03 1998-03-27 DoD Network Information Center (DNIC).
215.0.0.0/8 US-DOD 1998-03 1998-06-05 DoD Network Information Center (DNIC).
218.0.0.0/8 APNIC 2010-01 Formerly IANA – Reserved 1981-09.
224.0.0.0/8–239.0.0.0/8 Multicast 1981-09 1991-05-22 Multicast (formerly “Class D“) (RFC 5771) registered in [1]. 224.0.0.0/4.
240.0.0.0/8–255.0.0.0/8 Future Use 1981-09 Reserved for future use (formerly “Class E“) (RFC 1112). 255.255.255.255 is reserved for “limited broadcast” destination address (RFC 919) and (RFC 922). 240.0.0.0/4.


 
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保留的A类(/8)IPv4网段分配给谁了?:目前有3 条留言

  1. 买吧,ipv4还是有的吧,虽然快枯竭

    2015-03-17 下午 6:44 [回复]
    • 一直说快没了,还是在用呢,不过估计等物联网正式普及的时候,IPv6不得不也流行起来

      2015-03-25 下午 7:15 [回复]
  2. 沙发
    小林:

    ipv4已近枯竭,一个独立IP难求啊

    2014-12-13 下午 6:22 [回复]

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